Microfilaments are composed mainly of a protein called
A. Actin
B. Tubulin
C. Myosin
D. Chitin

see full answer

Your Exam Success, Personally Taken Care Of

1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.

An Intiative by Sri Chaitanya

(Unlock A.I Detailed Solution for FREE)

JEE

NEET

Foundation JEE

Foundation NEET

CBSE

Detailed Solution

Proteins and Their Functions

Tubulin
- Belongs to the globular protein superfamily.
- Forms microtubules, which are an essential part of the cytoskeleton in eukaryotic cells.
Myosin
- A member of the motor protein superfamily.
- Plays a crucial role in muscle contraction.
- While associated with microfilaments during contraction, myosin itself is not the structural component of microfilaments.
Chitin
- Found in the cell walls of fungi and in the exoskeletons of arthropods, as well as in the radula of mollusks.
- Provides structural support but is not related to microfilaments.
Actin
- A multifunctional globular protein found in all eukaryotic cells.
- The main structural protein of microfilaments.
- Plays a critical role in maintaining cell shape, motility, and intracellular transport.